<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template v-slot="scope">{{scope.row.add_time | dataFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template v-slot="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit" @click="editGoods(scope.row)"></el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
    <!-- 编辑商品对话框 -->
    <el-dialog title="提示" :visible.sync="dialogVisible" width="50%" :before-close="handleClose">
      <el-form :model="editForm" :rules="rules" ref="ruleForm" label-width="100px">
        <el-form-item label="商品 ID">
          <el-input v-model="editForm.goods_id" disabled></el-input>
        </el-form-item>
        <el-form-item label="商品名称" prop="goods_name">
          <el-input v-model="editForm.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="价格" prop="goods_price">
          <el-input v-model="editForm.goods_price" type="number"></el-input>
        </el-form-item>
        <el-form-item label="数量" prop="goods_number">
          <el-input v-model="editForm.goods_number" type="number"></el-input>
        </el-form-item>
        <el-form-item label="重量" prop="goods_weight">
          <el-input v-model="editForm.goods_weight" type="number"></el-input>
        </el-form-item>
        <el-form-item label="介绍">
          <el-input v-model="editForm.goods_introduce"></el-input>
        </el-form-item>
        <el-form-item label="上传图片路径">
          <el-input v-model="editForm.pics"></el-input>
        </el-form-item>
        <el-form-item label="商品的参数">
          <el-input v-model="editForm.attrs"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="closeDialog">取 消</el-button>
        <el-button type="primary" @click="edit">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 总数据条数
      total: 0,
      dialogVisible: false,
      editForm: {
        goods_name: '',
        goods_price: 0,
        goods_number: 0,
        goods_weight: 0,
        goods_introduce: '',
        pics: [],
        attrs: []

      },
      rules: {
        goods_name: [
            { required: true, message: '请输入商品名称', trigger: 'blur' }
        ],
        goods_price: [
            { required: true, message: '请输入商品价格', trigger: 'blur' }
        ],
        goods_number: [
            { required: true, message: '请输入商品数量', trigger: 'blur' }
        ],
        goods_weight: [
            { required: true, message: '请输入商品重量', trigger: 'blur' }
        ]

      }
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      this.$message.success('获取商品列表成功！')
      console.log(res)
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (confirmResult !== 'confirm') {
          return this.$message({
            type: 'info',
            message: '已取消删除'
          })
        }
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
          return this.$message.error('删除商品失败！')
        }
        this.$message.success('删除商品成功！')
        this.getGoodsList()
    },
    goAddpage() {
      this.$router.push('/goods/add')
    },
    // 编辑事件
    editGoods(row) {
      this.dialogVisible = true
      console.log(row)
      this.editForm = row
    },
    // 对话框取消事件
    closeDialog() {
      this.$refs.ruleForm.resetFields()
      this.dialogVisible = false
    },
    handleClose() {
      this.$refs.ruleForm.resetFields()
      this.dialogVisible = false
    },
    // 对话框确认事件
    edit() {
      const that = this
      this.$refs.ruleForm.validate(async valid => {
        if (!valid) return this.$message.error('请填写表单必填项')
        const { data: res } = await this.$http.put(`goods/${this.editForm.goods_id}`, that.editForm)
        console.log(res)
        if (res.meta.status !== 201) {
          return this.$message.error('修改商品信息失败')
        }
        this.$message.error('修改商品信息成功')
        this.dialogVisible = false
      })
    }
  }
}
</script>

<style lang="less" scoped>
.el-table{
  margin-top: 15px;
}
</style>
